Chrome:DevTools

lastmod 2026-01-11created 2023-02-155 edits

Application

• Frames - You can directly download image files that were downloaded here.

Network

How to check whether a cached file is used

• caching - Check whether network response is coming from server or Chrome cache - Stack Overflow

Check the Size column in the Network tab:

from ServiceWorker

• javascript - "Status Code:200 OK (from ServiceWorker)" in Chrome Network DevTools? - Stack Overflow
• http - What is the circle icon in Chrome's Network tab? - Server Fault
• web worker - Name with gear icon in Chrome network requests table - Stack Overflow

A gear icon in the left corner means the request was made by the ServiceWorker.

See also

• Chrome
• DevTools
• Wirebrowser - CDP-based integrated network and memory debugging tool for analyzing browser internals

Favorite site

• Chrome DevTools - Chrome Developers